Keysight Probing Solutions

Probe Types

Keysight offers a broad range of voltage, current, and optical probing solutions for InfiniiVision and Infiniium Series oscilloscopes. Select from the probe categories listed below to see what Keysight has to offer.

Passive Probes

Optically Isolated Differential Probes

Differential Active Probes < 10 GHz

Differential Active Probes ≥ 10 GHz

High-Voltage Differential Active Probes

Single-Ended Active Probes

Power Rail Probes

Current Probes

Optical Probes

Related Resources

InfiniiVision Oscilloscope Probes and Accessories

Infiniium Oscilloscope Probes and Accessories

DCA Accessories N1027A Kits and General-Purpose Parts

Probe Resource Center

Passive Probes

Keysight offers a broad range of passive probes with various attenuation ratios and input impedance specifications to optimize the dynamic range and loading considerations of your oscilloscope ground-reference measurements. These passive probes are compatible with most Keysight oscilloscopes that have either standard BNC inputs or AutoProbe1/BNC input connections.

N2894A passive probe
General-Purpose Passive Probes
ModelBandwidthAttenuation RatioInput Impedance1Compensation Range2
Notes
N2840A50 MHz
10:110 MΩ // 11 pF
5 - 30 pF
 
10074D150 MHz10:110 MΩ // 15 pF
9 - 17 pF
 
N2841A150 MHz
10:110 MΩ // 11 pF
5 - 30 pF
Recommended for InfiniiVision 2000 X-Series
N2871A200 MHz10:110 MΩ // 9.5 pF
10 - 25 pF
Optimized for fine-pitch probing
N2842A
300 MHz
10:1
10 MΩ // 11 pF
5 - 30 pF
Recommended for InfiniiVision 2000 X-Series
N2853A
350 MHz
10:1
10 MΩ // 11 pF
5 - 30 pF
 
N2872A
350 MHz
10:110 MΩ // 9.5 pF
10 -25 pF
Optimized for fine-pitch probing
N7007A
400 MHz10:110 MΩ // 16 pF
6 - 18 pF
Extreme temperature probing  (-40 to +85°C), 2 meter cable
N2843A500 MHz
10:110 MΩ // 11 pF
5 - 30 pF
Recommended for InfiniiVision 3000 X-Series
10073D
500 MHz
10:12.2 MΩ // 12 pF
6 - 15 pF
 
 N2873A  500 MHz10:110 MΩ // 9.5 pF10-25 pFFine-pitch, recommended for Infiniium EXR/MXR/S-Series
 N2875A  500 MHz20:120 MΩ // 5.6 pF7 - 20 pFOptimized for fine-pitch, low-capacitive probing
N2894A  700 MHz10:110 MΩ // 9.5 pF10 - 25 pFFine-pitch, recommended for InfiniiVision 4000/6000 X-Series
PP0002A800 MHzvariable40 MΩ // 2.0 pFN/A5 mm tip, 1200 V CAT II, requires PP0004A (AutoProbe 1) 
PP0001A1 GHzvariable10 MΩ // 4.0 pFN/A5 mm tip, 300 V CAT II, requires PP0004A (AutoProbe 1) 
PP0003A1 GHzvariable10 MΩ // 4.0 pFN/AMMCX connector, 30 V CAT II, requires PP0004A (AutoProbe 1) 
High-Sensitivity 1:1 Passive Probes
ModelBandwidthAttenuation RatioInput Impedance1,3Compensation Range
Notes
10070D20 MHz1:11 MΩ // 70 pF + N/A

Recommended for low-voltage measurements                                          

N2870A 35 MHz 1:11 MΩ // 39 pF + N/ARecommended for low-voltage measurements            
Switchable Passive Probes (1:1 // 10:1)
ModelBandwidthAttenuation RatioInput Impedance1,3Compensation Range2
Notes
   N2142A   6 MHz1:11 MΩ // 100 pF + N/A

Low-cost 2-pack, recommended for InfiniiVision EDUX1000 X-Series

70 MHz10:110 MΩ // 15 pF +15 - 30 pF
   N2140A   6 MHz1:11 MΩ // 100 pF +

N/A

Low-cost 2-pack, recommended for InfiniiVision EDUX1000 X-Series

200 MHz10:110 MΩ // 15 pF +
15 - 30 pF
   N2889A   10 MHz1:11 MΩ // 60 pF +N/AThe most general-purpose passive probe
350 MHz10:110 MΩ // 11 pF +10 - 35 pF
High-voltage Passive Probe (100:1)
ModelBandwidthAtten. RatioInput Impedance1Compensation Range2
Notes
10076C    500 MHz      100:1   66.7 MΩ // 3 pF +   6 - 18 pF   

High-voltage, low capacitive probing

High-frequency/Low-Z Passive Probes (50-Ω terminated)
ModelBandwidthAttenuation RatioInput Impedance4Compensation Range
Notes
N2874A
1.5 GHz10:1
500 Ω // 1.8 pF +N/A

Low-cost, high-frequency probing at the cost of resistive loading

N2876A1.5 GHz100:15 kΩ // 2.2 pF + N/ALow-cost, high-frequency probing at the cost of resistive loading
TDR/TDT Probe
ModelBandwidthTypeInput ImpedanceTip SpacingCompatible TDR/TDT ModulesNotes
N1021B18 GHzDifferential100  Ωvariable between 0.5mm-2.54mm

DCA-X N1055A & 54754A

Designed for TDR applications, but also suitable as high bandwidth, passive probe for non-TDR applications
Passive Probes for Handheld Digital Oscilloscopes
ModelBandwidthAttenuation RatioInput CapacitanceLengthSafety Rating
U1560A45 MHz
1:142 pF
1.2 mCat III 300 V
U1561A250 MHz10:116 pF
1.2 m
Cat III 600 V, Cat II 1000 V
U1562A300 MHz
100:16.5 pF
1.2 mCat III 600 V, Cat II 1000 V, Cat I 3540 V

1. Input impedance when terminated into oscilloscopes with 1-MΩ input terminations. For higher-bandwidth Infiniium oscilloscopes with 50-Ω input terminations only, the E2697A high impedance adapter can be purchased (includes 10073D 500-MHz passive probe) to provide a 1-MΩ input termination. 

2. For proper probe compensation (flatness), the oscilloscope’s input capacitance must be within the specified compensation range of the probe. 

3. Capacitance at the probe tip of 1:1 probes is the specified probe capacitance plus the capacitance of the oscilloscope when terminated into 1-MΩ.

4. Input impedance when terminated into oscilloscopes with 50-Ω input terminations. These probes are not compatible with Keysight’s InfiniiVision 1000 and 2000 X-Series oscilloscopes. 

Optically Isolated Differential Probes

Galvanically isolated voltage probes separate the device under test (DUT) from the oscilloscope and earth ground, enabling safer and more accurate measurements. These types of probes have a high common-mode rejection ratio (CMRR), which is essential for capturing small signals in the presence of large common-mode voltages at floating nodes. Keysight's isolated probes have a CMRR up to 10 billion times higher than standard differential voltage probes referenced to earth ground. The CMRRs of Keysight's isolated probes are driven by the attached probe tip.

PS0008A with ED probe positioner assembly
Optically Isolated Differential Probes
ModelBandwidth

Max Input Range1

Max Probe OffsetMax Common Mode Voltage RangeProb-to-scope InterfacePower SourceOscilloscope Termination
PS0004A350 MHz±2500 V±2500 V±60 kVAutoProbe1Oscilloscope50 Ω
PS0006A700 MHz±2500 V
±2500 V±60 kVAutoProbe1Oscilloscope50 Ω
PS0008A1 GHz±2500 V±2500 V±60 kVAutoProbe1Oscilloscope50 Ω
  1. Probe tip dependent. View the compatible tips on the probe model web pages.
Oscilloscope Compatibility for Optically Isolated Differential Probes
Probe-to-scope Interface
Scope Termination
Compatible Oscilloscopes

AutoProbe1

50 Ω

Infiniium EXR and MXR-Series

AutoProbe Interface

Keysight’s AutoProbe interface provides the following:

  • DC voltage to power active probe circuitry.
  • Automatic detection of probe attenuation.
  • Automatic control of selectable probe attenuation on some probes.
  • Probe DC offset on many probes.

Differential Active Probes < 10 GHz

Probing high-speed differential buses typically requires differential active probes. Keysight offers a broad range of differential active probing solutions for your unique measurement requirements based on bandwidth, dynamic measurement range, and probe loading.

High-Frequency Differential Active Probes
Differential Active Probes  < 10 GHz
ModelBandwidthInput RangeProbe OffsetDiff Input ImpedanceAttenuation RatioProb-to-scope InterfacePower SourceOscilloscope Termination
N2750A1.5 GHz±5 V±15 V100 kΩ/0.7 pF2:1/10:11AutoProbe1Oscilloscope50 Ω
N2751A3.5 GHz±5 V
±15 V100 kΩ/0.7 pF2:1/10:11AutoProbe1Oscilloscope50 Ω
N2752A6.0 GHz±5 V±15 V100 kΩ/0.7 pF2:1/10:11AutoProbe1Oscilloscope50 Ω
1130B21.5 GHz±2.5 V±12 V50 kΩ/0.27 pF10:1AutoProbe1Oscilloscope50 Ω
1131B2
3.5 GHz±2.5 V±12 V50 kΩ/0.27 pF10:1AutoProbe1Oscilloscope50 Ω
1132B26.0 GHz±2.5 V±12 V50 kΩ/0.27 pF10:1AutoProbe1Oscilloscope50 Ω
1134B27.0 GHz±2.5 V±12 V50 kΩ/0.27 pF10:1AutoProbe1Oscilloscope50 Ω
N2830A2,34 GHz±2.5 V±16 V100 kΩ/0.32 pF5:1/10:11AutoProbe1Oscilloscope50 Ω
N2831A2,38 GHz±2.5 V±16 V100 kΩ/0.32 pF
5:1/10:11AutoProbe1Oscilloscope50 Ω
N7000A28 GHz±2.5 V±16 V100 kΩ/0.32 pF5:1/10:11AutoProbe2Oscilloscope50 Ω
  1. Auto-selected based on V/division setting.
  2. Requires differential probe head sold separately.
  3. Not compatible with InfiniiVision X-Series oscilloscopes, but is compatible with the Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5442A and N2852A adapters
Oscilloscope Compatibility for High-Frequency Differential Active Probes (<10 GHz)
Probe-to-scope Interface
Scope Termination
Compatible Oscilloscopes
BNC50 Ω
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series 
  • Infiniium EXR, MXR, S-Series, 9000 Series
  • Any vendor’s oscilloscope with a BNC input connection and a 50 Ω input impedance termination 
AutoProbe1

50 Ω

  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series (except N2830A and N2831A)
  • Infiniium EXR, MXR, S-Series, 9000, and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter
AutoProbe250 Ω
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series

AutoProbe Interface

Keysight’s AutoProbe interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

High-Frequency Differential Active Probes ≥ 10 GHz

Get the highest performance available for measuring differential and single-ended signals on high-density integrated circuits and printed circuit boards.   

As devices get smaller and faster, accurately probing signals becomes more challenging. Keysight’s InfiniiMax Probing System has the most accurate probe amplifiers, the widest variety of probe heads, and all the accessories you need to get the job done.

MXOxxxA
High-Frequency Differential Active Probes ≥ 10 GHz
ModelBandwidthImpedance Profile1Diff Input ImpedanceProbe Noise2Probe-to-Scope InterfaceInfiniiMode3Input RangeProbe OffsetAttenuation Range4
MX0032A52 GHz (B-T 40 GHz)RCRC100 kΩ/ 0.32 pF27.1 nV/ rt(Hz)AutoProbe3No±1 V±12 V4.4:1/ 8.7:1
MX0031A52 GHzRCRC100 kΩ/ 0.32 pF27.1 nV/ rt(Hz)AutoProbe3No±1 V
±12 V4.4:1/ 8.7:1
MX0030A42 GHzRCRC100 kΩ/ 0.32 pF27.1 nV/ rt(Hz)AutoProbe3No±1 V±12 V4.4:1/ 8.7:1
N2803A30 GHzRCRC100 kΩ /0.32 pF
23.9 nV/rt(Hz)AutoProbe2No±1.25 V
±16 V
6:1
MX0025A25 GHzRC50 kΩ/0.17 pF25.0 nV/rt(Hz)AutoProbe2Yes±2.5 V±16 V1:1/4:1/8:1
MX0023A25 GHzRC50 kΩ/0.17 pF25.0 nV/rt(Hz)AutoProbe2
No±1.25 V±16 V1:1/4:1
N2802A25 GHzRCRC100 kΩ /0.32 pF23.9 nV/rt(Hz)AutoProbe2
No±1.25 V±16 V6:1
MX0024A20 GHzRC50 kΩ/0.17 pF25.0 nV/rt(Hz)AutoProbe2Yes±2.5 V±16 V1:1/4:1/8:1
N2801A20 GHzRCRC100 kΩ /0.32 pF23.9 nV/rt(Hz)AutoProbe2
No±1.25 V±16 V6:1
N7003A20 GHzRCRC100 kΩ /0.32 pF33.5 nV/rt(Hz)AutoProbe2
Yes±2.5 V±16 V5:1/10:1
MX0022A16 GHzRC50 kΩ/0.17 pF25.0 nV/rt(Hz)AutoProbe2Yes±2.5 V±16 V1:1/4:1/8:1
N7002A16 GHzRCRC100 kΩ /0.32 pF33.5 nV/rt(Hz)AutoProbe2
Yes±2.5 V±16 V5:1/10:1
MX0021A13 GHzRC50 kΩ/0.17 pF25.0 nV/rt(Hz)AutoProbe2Yes±2.5 V±16 V1:1/4:1/8:1
N7001A13 GHzRCRC100 kΩ /0.32 pF33.5 nV/rt(Hz)AutoProbe2
Yes±2.5 V±16 V5:1/10:1
N2832A13 GHzRCRC100 kΩ /0.32 pF33.5 nV/rt(Hz)AutoProbe1
Yes±2.5 V±16 V5:1/10:1
1169B13 GHzRC50 kΩ /0.21 pF25.0 nV/rt(Hz)AutoProbe1
No±1.65 V±16 V3.45:1
MX0020A10 GHzRC50 kΩ/0.17 pF25.0 nV/rt(Hz)AutoProbe2Yes±2.5 V±16 V1:1/4:1/8:1
1168B10 GHzRC50 kΩ /0.21 pF25.0 nV/rt(Hz)AutoProbe1
No±1.65 V±16 V3.45:1

1.  Input Impedance Profile: RCRC architecture is the best choice for signals with low source impedance and RC architecture is the best choice for measuring signals that transition to low power modes because it has lower loading.

2.  Probe noise listed is the most common setup. Probe noise can vary with multiple factors such as attenuation ratio, probe head, and probe mode.

3.  Measure differential, single-ended, and common mode signals.

4.  Auto selected based on volts/division (all modes).

Oscilloscope Compatibility for High-Frequency Differential Active Probes ≥ 10 GHz
Probe-to-scope Interface
Compatible Oscilloscopes
AutoProbe1

Infiniium MXR, EXR, S-Series, 9000, and 90000A Series

Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter

Infiniium UXR (1.85 mm and 1 mm models) with the cascaded use of the N5442A & N2852A adapters

AutoProbe2

Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series

Infiniium UXR (1.85 mm and 1 mm models) with the use of the N2852A adapter

Infiniium N1000A and 86100D DCA-X with the use of the N5477A adapter (only for N2801A/02A/03A) 

AutoProbe3Infiniium UXR (1.85 mm and 1 mm models)

High-Voltage Differential Active Probes

Keysight offers a broad range of high-voltage differential probes to help test power-related devices and circuits including probes with high input impedance for minimal loading, probes with multiple attenuation ratios for optimum dynamic range measurements, and probes that can measure up to ±7000 Volts.

High-Voltage Differential Active Probes
ModelBandwidthInput RangeDiff Input ImpedanceAttenuation RatioProb-to-scope InterfacePower SourceOscilloscope Termination
N2805A
200 MHz
±100 V4 MΩ/4.0 pF
50:1AutoProbe1Oscilloscope50 Ω
N2804A
300 MHz
±300 V
8 MΩ/10 pF
100:1
AutoProbe1Oscilloscope50 Ω
N2790A
100 MHz
±1400 V
1 MΩ/3.5 pF
50:1/500:1
AutoProbe1Oscilloscope1 MΩ
DP0001A
400 MHz
±2000 V
10 MΩ/2.0 pF
50:1/100:1/250:1/500:1
AutoProbe1Oscilloscope50 Ω
DP0010A250 MHz±42 V1.7 MΩ/0.9 pF17:1/85:1AutoProbe1Oscilloscope50 Ω
DP0011A500 MHz±42 V1.7 MΩ/0.9 pF17:1/85:1AutoProbe1Oscilloscope50 Ω
DP0012A1.0 GHz±42 V1.7 MΩ/0.9 pF17:1/85:1AutoProbe1Oscilloscope50 Ω
DP0013A1.7 Ghz±42 V1.7 MΩ/0.9 pF17:1/85:1AutoProbe1Oscilloscope50 Ω
DP0030A100 MHz±750 V5 MΩ // 2 pF250/25:1BNCUSB1 MΩ
DP0031A200 MHz±750 V5 MΩ // 2 pF250/25:1AutoProbe1Oscilloscope1 MΩ
DP0032A200 MHz±1500 V10 MΩ // 2 pF500/50:1AutoProbe1Oscilloscope1 MΩ
DP0033A200 MHz±3000 V20 MΩ // 2 pF1000/100:1AutoProbe1Oscilloscope1 MΩ
Oscilloscope Compatibility for High-Voltage Differential Active Probes
Probe-to-scope Interface
Oscilloscope Termination
Compatible Oscilloscopes
BNC1 MΩ
  • InfiniiVision 1000, 2000, 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000 Series
  • Any vendor’s oscilloscope with a BNC input connection and a 1 MΩ input impedance termination 
BNC

50 Ω

  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000 and 90000A Series
  • Any vendor’s oscilloscope with a BNC input connection and a 50 Ω input impedance termination
AutoProbe1150 Ω
  • InfiniiVision 3000A1, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000 and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5442A adapter
  • Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5442A & N2852A adapters


1.  DP0001A is not compatible with the InfiniiVision 3000A X-Series oscilloscopes.

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Single-Ended Active Probes

Measurements Referenced to Ground

When capacitive loading and limited bandwidth of conventional passive probes begin to degrade the measurement integrity of your high-speed signals, consider using one of Keysight’s higher bandwidth single-ended active probes.

Single-Ended Active Probes
Single-Ended Active Probes
ModelBandwidthInput RangeProbe OffsetInput ImpedanceAttenuation RatioProbe-to-scope InterfaceNotes
N2795A1 GHz±8 V
±8 V1 MΩ/1.0 pF
10:1AutoProbe1
 
N2797A 1.5 GHz±8 V
±12 V1 MΩ/1.0 pF
10:1AutoProbe1

Extreme Temp. (-40 to +85° C), 2 meter long cable

N2796A2 GHz
±8 V
±12 V1 MΩ/1.0 pF
10:1AutoProbe1
 
1130B11.5 GHz±2.5 V±12 V25 kΩ/0.44 pF
10:1AutoProbe1 
1131B13.5 GHz
±2.5 V
±12 V25 kΩ/0.44 pF
10:1
AutoProbe1 
1132B15.0 GHz
±2.5 V
±12 V25 kΩ/0.44 pF
10:1
AutoProbe1 
1134B17.0 GHz
±2.5 V
±12 V25 kΩ/0.44 pF
10:1
AutoProbe1
 
  1. Single-ended and differential probe. Requires probe head sold separately.
Oscilloscope Compatibility for Single-Ended Active Probes
Probe-to-scope Interface
Compatible Oscilloscopes
AutoProbe1
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000, and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the N5442A adapter
  • Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5442A & N2852A adapters (only for N2795A/96A/97A, not for 1130B/31B/32B/34B) 

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Power Rail Probes

Measure Output Ripple with High-Sensitivity

Engineers often use 1:1 passive probes for the sensitivity required to measure the output ripple of DC supplies. But 1:1 passive probes have limited bandwidth (typically less than 35 MHz) and no DC offset capability. A Keysight power rail probe can measure noise, output ripple, and transients on DC power supplies with high sensitivity (millivolts), large DC offsets, and high bandwidth.

N7020A Power Rail Probe
Power Rail Probes
ModelBandwidthInput RangeProbe OffsetInput ImpedanceAttenuation RatioProbe-to-scope Interface
N7020A2 GHz±850 mV1±24 V
50 kΩ1.1:1AutoProbe1
N7024A6 GHz±600 mV1±15 V
50 kΩ
1.3:1AutoProbe1
  1. Measurement range about offset level. 
Oscilloscope Compatibility for Power Rail Probes
Model Compatible Oscilloscopes
N7020A
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series oscilloscopes.
  • Infiniium EXR, MXR, S-Series, and 9000 Series oscilloscopes.
N7024A
  • Infiniium EXR, MXR, S-Series, 9000 Series, and 90000A Series oscilloscopes.
  • Infiniium UXR-Series, V-Series, Z-Series, 90000Q Series, and 90000X Series with the use of the N5442A adapter.

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Current Probes

Keysight offers a broad range of current probing solutions including clamp-on current probes with bandwidths from DC to 150 MHz, Rogowski coils that can measure peak currents up to 3000 Amps, and high-sensitivity R-shunt probes that can measure current as low as 50 µA.

Current Probe for Oscilloscopes
AC/DC Hall-Effect (Clamp-On) Current Probes
ModelBandwidthMax CurrentConversion Factor (Attenuation)Min Scope Vertical Scale Probe-to-Scope InterfacePower Source
N7026A150 MHz40 A-Pk1, 30 A-RMS1
1 V/A (1:1), 0.2 V/A (5:1)2
1 mA/divAutoProbe1Oscilloscope
N2893A100 MHz30 A-Pk3, 24 A-RMS30.1 V/A (10:1)10 mA/divAutoProbe1Oscilloscope
N2783B100 MHz50 A-Pk, 30 A-RMS0.1 V/A (10:1)10 mA/divBNCN2779A
1147B50 MHz30 A-Pk3, 24 A-RMS3
0.1 V/A (10:1)10 mA/divAutoProbe1Oscilloscope
N2782B50 MHz50 A-Pk, 30 A-RMS0.1 V/A (10:1)10 mA/divBNCN2779A
N2781B10 MHz300 A-Pk, 150 A-RMS0.01 V/A (100:1) 100 mA/divBNCN2779A
N2780B2 MHz700 A-Pk, 500 A-RMS0.01 V/A (100:1) 100 mA/divBNCN2779A
1146B100 kHz100 A-Pk, 100 A-RMS0.1 V/A (10:1), 0.01 V/A (100:1)4
10 mA/divBNC9 V Battery
AC-Only Rogowski Current Probes
ModelBandwidthMax CurrentConversion Factor (Attenuation)Probe-to-Scope InterfacePower Source
N7042A9.2 Hz- 30 MHz300 A-Pk0.02 V/A (50:1)BNCAC power adapter or 4x AA batteries
N7041A12 Hz - 30 MHz600 A-Pk0.01 V/A (100:1)BNCAC power adapter or 4x AA batteries
N7040A3 Hz - 23 MHz3000 A-Pk0.002 V/A (500:1)BNCAC power adapter or 4x AA batteries
High-Sensitivity AC/DC R-Shunt Current Probes
ModelBandwidthCurrent Range5GainChannelsProbe Heads (Standard)Probe-to-Scope InterfacePower Source
N2820A

Zoom-out: 3 MHz

Zoom-in: 500 kHz

Zoom-out: 5 A

Zoom-in: 50 µ A 

Zoom-out: 1.97

Zoom-in: 300		2

20 mΩ, 100 mΩ,

User-defined		AutoProbe1Oscilloscope
N2821A

Zoom-out: 3 MHz

Zoom-in: 500 kHz

Zoom-out: 5 A

Zoom-in: 50 µ A 

Zoom-out: 1.97

Zoom-in: 300

1

20 mΩ, 100 mΩ,

User-defined		AutoProbe1Oscilloscope
  1. When using a power adapter booster (standard). 15 A-Pk, 5 V-RMS without oscilloscope-provided power only. An MXR/EXR enables max current range without using the power adapter.
  2. Auto-selected based on Amps/division setting.
  3. The maximum number of current probes supported by InfiniiVision oscilloscopes is limited depending on the oscilloscope. Infiniium oscilloscopes have no limitations.
  4. Manually selectable. 
  5. A wider input range is possible when using the user-defined head and Rsense.
Oscilloscope Compatibility for Current Probes
Probe-to-scope Interface
Compatible Oscilloscopes
BNC
  • InfiniiVision 1000, 2000, 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, 9000, and 90000A Series
  • Any vendor’s oscilloscope with a BNC input connection and a 1 MΩ input impedance termination
AutoProbe1
  • InfiniiVision 3000A, 3000T, 4000, and 6000 X-Series
  • Infiniium EXR, MXR, S-Series, and 9000 and 90000A Series
  • Infiniium UXR (3.5 mm models), V, Z, Q, and 90000X Series with the use of the N5449A adapter
  • Infiniium UXR (1 mm & 1.85 mm models) with the cascaded use of the N5449A & N2852A adapters (only for 1147B and N2893A, not for N7026A, N2820A/21A)

AutoProbe1 Interface

Keysight’s AutoProbe1 interface provides the following:

  • DC voltage to power active probe circuitry
  • Automatic detection of probe attenuation
  • Automatic control of selectable probe attenuation on some probes
  • Probe DC offset on many probes

Optical Probes

Keysight offers fully-integrated optical front-end solutions for Infiniium real-time oscilloscopes. The solution is designed for reference receiver testing of industry optical standards or characterizing the raw response of an optical transmitter. It can also be used to view optical streams at speeds up to 56 Gbaud PAM4, making it an ideal solution for characterizing or troubleshooting high-speed optical signals in system level testing and debugging.

Optical Probes
Optical Probes
ModelBandwidthInputsInput Connector TypeWavelength RangeRequired Infiniium Baseline SoftwareOutput Connector TypeCompatible Oscilloscopes
N7004A33 GHzSingle-mode & Multi-modeFC/PC to 50/125 um fiber 750 nm to 1650 nmVersion 05.70 or higher2.92 mm femaleUXR (3.5 mm models), V, Z, Q, and 90000X
N7005A60 GHzSingle-modeFC/PC to 9/125 um fiber 1250 nm to 1600 nmVersion 10.25 or higher1.85 maleUXR (1 mm & 1.85 mm models)

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Oscilloscope Probes – Frequently Asked  Questions

What is an oscilloscope probe?

An oscilloscope probe connects an oscilloscope to a device under test (DUT). Probes then transfer the signal from the DUT to the oscilloscope for analysis, enabling you to measure and test the electrical signals.

What are the different types of oscilloscope probes?

Passive probes: These probes are the most common types, suitable for low-frequency measurements. They only contain components like resistors and capacitors that passively respond to input signals. Therefore, these probes do not require external probe power.

Active probes: These are used for high-frequency measurements. They require external probe power for the active electronic components in the probe, such as amplifiers and transistors, which are used to improve signal fidelity and performance.

Differential probes: These consist of two sensing leads that measure the differential voltage between two test points where neither lead is grounded.

Current probes: These probes measure current waveforms. There are two types — clamp-on versions that do not break the circuit or types that you connect in series with the circuit.

Can I use any probe with any oscilloscope?

Compatibility is not assured even though many probes and oscilloscopes use standard connectors. It’s critical to verify:

• Bandwidth compatibility: The probe’s bandwidth should match or exceed the oscilloscope’s bandwidth.

• Connector type: Ensure the probe’s connector matches the oscilloscope input.

• Voltage and current ratings: Confirm the probe can handle the oscilloscope’s input range.

You should refer to the specific oscilloscope and probe manuals for detailed operation and maintenance guidelines, which are crucial for effective and accurate measurements.

How do I use an oscilloscope probe?

1. Connect the probe: You must attach the probe’s connector to the oscilloscope channel input and the probe tip to the point in the circuit you want to measure.

2. Compensate the probe: Many probes have a compensation adjustment. You must connect the probe to the oscilloscope’s calibration signal and adjust the compensation until the displayed waveform is correct.

3. Set the oscilloscope: You must adjust the oscilloscope settings (e.g. time base, vertical scale) to display the signal correctly.

4. Measure: You can analyze the signal using the oscilloscope’s measurement functions.

How do I maintain my oscilloscope probe?

Regular calibration: Calibrate the probe regularly to maintain accuracy.

Proper handling: Do not bend the cables sharply; carefully handle the probe tip to prevent damage.

Cleaning: You must keep the probe tip clean for accurate measurements using appropriate cleaning solutions recommended by the probe manufacturer.

Storage: When you are not using the probes, safely store to avoid physical damage or exposure to extreme conditions.

For more detailed answers, please check out the following blog.